{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "RNA", "cell line", "cell type", "DNA"], "input": "OCA-B stimulates the transcription from an IgH promoter in conjunction with either Oct-1 or Oct-2 but shows no significant effect on the octamer / Oct -dependent transcription of the ubiquitously expressed histone H2B promoter and the transcription of USF- and Sp1- regulated promoters ."}
{"protein": ["OCA-B", "Oct-1", "Oct-2", "histone H2B"], "RNA": [], "cell line": [], "cell type": [], "DNA": ["IgH promoter", "Oct", "octamer", "ubiquitously expressed histone H2B promoter"]}